hexachord noun.
['hɛksǝkɔ:d] L17.[from HEXA- + CHORD noun1.]Music.
1. The interval of a sixth.
L17-M18.2. A diatonic scale of six notes with a semitone between the third and fourth, used at three different pitches in medieval music.
M18. [TahlilGaran] English Dictionary ▲